by bt1 » Sun Feb 08, 2015 6:10 am
bay,
As a rule of thumb, dried hop cones are roughly 10% off the same AA levels as pellets so x 1.1 as a general rule. if they are "fresh" ie wet can't help you on 2 levels weight basis is not the same and fresh are yet to reach expected aa levels so difficult to predict aa levels.
What I would suggest is grab a copy of Brewmate software, its free, play with the hop weights and aa levels to work out what you should use.
From personal experience, if its flowers for aroma /dry hopping = great as it adds a level of freshness ideal for Galaxy, Centennial, Cascade, Nelson, Amarillo etc
Makes no difference when it boiled for bittering it's just a slightly bigger saucepan = if your down 10% on aa you can extend boil time to get same ibu's
bt1